[PATCH] D30145: AMDGPU/SI: Fix SI scheduler LiveOut Refcount issue

[Valery Pykhtin via Phabricator via llvm-commits]

vpykhtin added inline comments.


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Comment at: lib/Target/AMDGPU/SIMachineScheduler.cpp:1372
+      SIScheduleBlock *Block = Blocks[ID];
+      const std::set<unsigned> OutRegs = Block->getOutRegs();
+
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constructing std::set every time you need to find one register in it is an obvious overkill. In this case its better to swap these two loops, construct the OutRegs set once for a block and then search all out regs there.


https://reviews.llvm.org/D30145